patch 7.4.1831
Problem:    When timer_stop() is called with a string there is no proper error
            message.
Solution:   Require getting a number. (Bjorn Linse)
diff --git a/src/version.c b/src/version.c
index caf1e46..e1297c8 100644
--- a/src/version.c
+++ b/src/version.c
@@ -754,6 +754,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1831,
+/**/
     1830,
 /**/
     1829,